FILE - In this Jan. 15, 2007 file photo, former Vice President Al Gore acknowledges spectators in front of a poster of his starring documentary film "An Inconvenient Truth" on global warming before ... more

FILE - In this Jan. 15, 2007 file photo, former Vice President Al Gore acknowledges spectators in front of a poster of his starring documentary film "An Inconvenient Truth" on global warming before its screening during the Japan Premier at a theater in Tokyo. Gore's climate change documentary, "An Inconvenient Truth," is getting a sequel. Paramount Pictures said Friday, Dec. 9, 2016, the follow-up to the Oscar-winning original will premiere at next January's Sundance Film Festival. (AP Photo/Koji Sasahara, File) less